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Difference between Destroy and Delete
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Basically destroy runs any callbacks on the model while delete doesn't.
From the Rails API:
ActiveRecord::Persistence.delete
Deletes the record in the database and freezes this instance to reflect that no changes should be ...
Reading a plain text file in Java
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I'd also recommend you download and read this wonderful (yet free) book called Thinking In Java
In Java 7:
new String(Files.readAllBytes(...))
(docs)
or
Files.readAllLines(...)
(docs)
In Java 8:
Files.lines(..).forEach(...)
(docs)
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ElasticSearch - Return Unique Values
How would I get the values of all the languages from the records and make them unique.
5 Answers
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How to read a line from the console in C?
...ters it read. So you use fgetc:
char * getline(void) {
char * line = malloc(100), * linep = line;
size_t lenmax = 100, len = lenmax;
int c;
if(line == NULL)
return NULL;
for(;;) {
c = fgetc(stdin);
if(c == EOF)
break;
if(--len == 0)...
JSON Stringify changes time of date because of UTC
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thanks... I actually found a great library here, blog.stevenlevithan.com/archives/date-time-format all you need to do this (maybe it will help you) , you pass false and it doesn't convert. var something = dateFormat(myStartDate, "isoDateTi...
Error - Unable to access the IIS metabase
After installing Visual Studio 2012 and opening my solution I get a series of errors in this form:
37 Answers
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Adding gif image in an ImageView in android
...imationActivity: -
public class AnimationActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
InputStream stream = null;
try {
stream = getAssets().open("pig...
'Must Override a Superclass Method' Errors after importing a project into Eclipse
Anytime I have to re-import my projects into Eclipse (if I reinstalled Eclipse, or changed the location of the projects), almost all of my overridden methods are not formatted correctly, causing the error:
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Count characters in textarea
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edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Jun 21 '12 at 6:51
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Linking to an external URL in Javadoc?
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answered May 21 '12 at 10:13
aem999aem999
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